Operating instructions
BLUER OFF DEEAy
JL_IpER SELCCT
D_M 120
24wV 180
HUM
SEG2 SE©/
PCB
W4T (COM)
I BFANR CON_ NUOUS FAN SELECT RELAY SPD f OL AUTO RESET INTERNAL MOTOR OVERLOAD
BHT, CLR BLOWER MOTOR SPEED CHANGE RELAY SPDT TEMPERATURE SWITCH (NC)
BLWR BLOWER MOTOR RELAY SPST (N O ) PCB PRINT£D CIR CUT gUARD CONTROL
BLWM BLOWER MOTOR PERMANENT SPLDCAPACITOR PL/ 11 CIRCUIT PCB CONNECTOR
CAP 1 2 CAPACITOR PLZ Z CIRCUIT CONNECTOR
CPU MICROPROCESSOR AND CIRCUITRY pL3 2 CIRCUIT HSI, CON NECTOR
EAC 1 ELECTRONIC/MR CLEANER CONNECTION (115 VAC 10 AMP MAX) PL4 30RCUIT DM EXTENSION CONNECTCR
EAC Z ELECTRONIC/MR CLEANER CONNECTION (COMMON) PR SSUR SW CH SPST (N O }
FRS FLAME ROLLOUT SW MANUAL RESE_ SPST (N C ) PRS
FSE FLAME pROVING ELECTRODE TEST'_VIN COMPONENT TEST & IWIN TERMINAL
FU 1 FUSE 3 AMR AUTOMOtiVE BLADE _YPE FACTORY IN STALLE9 TRAN TRANSFORMER 115 VAC/24VAC
FU 2 FUSE OR CIRCUff BREAKER CURRENT INTERRUPT DEVICE
( o N AL O& UPP O_
GND E©UIPMENT GROUND
GV GAS VALVE REDUNDANT
GVRIZ GAS VALVE RELAY DPST_(N O )
HSI HOT SURFACE IGNITER (115 VAC)
HSIR HOT SURFACE IGNITER RELAY SPST_(N O )
HUM Z4VAC HUMIDIFIER CONNECfl ON (0 5 AMP MAX)
IDM INDUCED DRAFT MOTOR PSC
IDR INDUCED DRAFT MOTOR RELAY SPST (No)
ILK BLOWER ACCESS PANEL INTERLOCK SWITCH SPST-(N O )
J1 BLOWER OFF DELAY JUMPER SELECTOR
JB JUNCTION BOX
LED LIGHT E MIITING DIODE FOR STATUS CODES AMBER
LGPS LO_' GAS PRE%URE SWITCH SPST (NO)
LS LIMIT SWITCH, AUTO RESET SPST (NC)
JUNCTION
0 UNMARKED TERMINAL
i PCB CONTROL TERMINAL
FACTORY WIRING (115VAC)
-- FACTORY WIRING (24VAC)
------ OWRNG( 5VAC_
.... DWRNG(4VAC)
CONDUCTOR ON CONTROL PCB
Q FIELD WIRING SCREW _RMINAL
-C- FIELD EARTH GROUND
EQUIPMENT GROUND
FIELD SPLICE
)_ PLUG RECEPTACLE
TO 115VAC FIELD DISCONNECT SCHEMATIC DIAGRAM
#2
(NATURAL GAS & PROPANE)
I
FSE
I
NOT_S:
If ary of the ollg[nal edu[pIT_nt wire ISreplaced usewire rated for 105 C
Use only copper wire between the disconnect swath and the furnace jundbn box (JB)
3: [his _re n_st be connected to furnace sheet metal for control to prove flame
Symbols ale e_ectdcal lepresenta_on only
i So[_J lines [ns_e PCB are printed circuR board coedu_ors and are ncOncluded in _gend
RepFace only w_h a 3 aIT_ fuse
Inducer (IDM) and bbwer (BLWM) IT_tOlS contain [ntemaFaut_reset theriT_Foverbad sw_ches (OL)
8 Neu_rabeonr_c_ions are [nlercben_akte _,ithin tbe NEUTPAk conr_dor block
9 gbv, er r_:_or speed se_ctbns are for aver_ conditbns, see insta_btion instrudions for detai_s on
o_i_mm speed se_c_on
10 YELLOWle_ not on all n_tors
11 Factory conr'_cted wben LGPS is not used
12 Ignition-Dckou_ _,d[occur alter four consecu_e unsuccessfu_tria_s-for_nition Comro_w,_
a[t_leset after three houls
326796-101REWA
Fig. 30---Wiring Diagram
A02157